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| author | Heiko Carstens <hca@linux.ibm.com> | 2023-11-20 19:37:19 +0100 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-12-10 17:21:32 -0800 |
| commit | 66242cfafeea59a0199250dda3dc98736782a739 (patch) | |
| tree | d16b020b4f4f7f78846060a6498947e5ff61a7ea /Makefile | |
| parent | fe1a25eb059b215949825d4c81e26b100e6816a9 (diff) | |
| download | lwn-66242cfafeea59a0199250dda3dc98736782a739.tar.gz lwn-66242cfafeea59a0199250dda3dc98736782a739.zip | |
checkstack: allow to pass MINSTACKSIZE parameter
The checkstack script omits all functions with a stack usage of less than
100 bytes. However the script already has support for a parameter which
allows to override the default, but it cannot be set with
$ make checkstack
Add a MINSTACKSIZE parameter which allows to change the default. This might
be useful in order to print the stack usage of all functions, or only those
with large stack usage:
$ make checkstack MINSTACKSIZE=0
$ make checkstack MINSTACKSIZE=800
Link: https://lkml.kernel.org/r/20231120183719.2188479-4-hca@linux.ibm.com
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Cc: Maninder Singh <maninder1.s@samsung.com>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Vaneet Narang <v.narang@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'Makefile')
| -rw-r--r-- | Makefile | 6 |
1 files changed, 4 insertions, 2 deletions
@@ -1576,7 +1576,8 @@ help: echo ' (default: $(INSTALL_HDR_PATH))'; \ echo '' @echo 'Static analysers:' - @echo ' checkstack - Generate a list of stack hogs' + @echo ' checkstack - Generate a list of stack hogs and consider all functions' + @echo ' with a stack size larger than MINSTACKSIZE (default: 100)' @echo ' versioncheck - Sanity check on version.h usage' @echo ' includecheck - Check for duplicate included header files' @echo ' export_report - List the usages of all exported symbols' @@ -2016,9 +2017,10 @@ CHECKSTACK_ARCH := $(SUBARCH) else CHECKSTACK_ARCH := $(ARCH) endif +MINSTACKSIZE ?= 100 checkstack: $(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \ - $(PERL) $(srctree)/scripts/checkstack.pl $(CHECKSTACK_ARCH) + $(PERL) $(srctree)/scripts/checkstack.pl $(CHECKSTACK_ARCH) $(MINSTACKSIZE) kernelrelease: @$(filechk_kernel.release) |